High-Harmonic Generation Using a Single Dielectric Nanostructure
High-harmonic generation (HHG) from solids is a novel method used to emanate coherent extreme-ultraviolet (EUV) pulses. The efficiency of plasmonic HHG can be improved by enhancing the field of nanostructures. However, the nanostructures used for plasmonic HHG have a limitation owing to the damage c...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/9/6/427 |
| _version_ | 1827657428933541888 |
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| author | Seunghwoi Han |
| author_facet | Seunghwoi Han |
| author_sort | Seunghwoi Han |
| collection | DOAJ |
| description | High-harmonic generation (HHG) from solids is a novel method used to emanate coherent extreme-ultraviolet (EUV) pulses. The efficiency of plasmonic HHG can be improved by enhancing the field of nanostructures. However, the nanostructures used for plasmonic HHG have a limitation owing to the damage caused by the amplified field. This study presents a single conical sapphire nanostructure used as a compact HHG emitter that generates high-order harmonics with wavelengths up to approximately 60 nm without causing severe damage. We compare the structure with a gold-layered conical sapphire structure and a bulk sapphire. The conical sapphire structure has a higher damage threshold and reusability for EUV generation even though it has a lower HHG intensity than that of the gold-layered conical sapphire structure because of the lower intensity enhancement. The measured signal intensity of the high-order harmonics in the EUV band from the conical sapphire structure is ten times higher than that of the bulk sapphire. The results confirm the possibility of creating a compact EUV light source for nanoscale applications. |
| first_indexed | 2024-03-09T22:43:59Z |
| format | Article |
| id | doaj.art-e9957afe338547a2b43277c505e66d54 |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-09T22:43:59Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-e9957afe338547a2b43277c505e66d542023-11-23T18:33:24ZengMDPI AGPhotonics2304-67322022-06-019642710.3390/photonics9060427High-Harmonic Generation Using a Single Dielectric NanostructureSeunghwoi Han0School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, KoreaHigh-harmonic generation (HHG) from solids is a novel method used to emanate coherent extreme-ultraviolet (EUV) pulses. The efficiency of plasmonic HHG can be improved by enhancing the field of nanostructures. However, the nanostructures used for plasmonic HHG have a limitation owing to the damage caused by the amplified field. This study presents a single conical sapphire nanostructure used as a compact HHG emitter that generates high-order harmonics with wavelengths up to approximately 60 nm without causing severe damage. We compare the structure with a gold-layered conical sapphire structure and a bulk sapphire. The conical sapphire structure has a higher damage threshold and reusability for EUV generation even though it has a lower HHG intensity than that of the gold-layered conical sapphire structure because of the lower intensity enhancement. The measured signal intensity of the high-order harmonics in the EUV band from the conical sapphire structure is ten times higher than that of the bulk sapphire. The results confirm the possibility of creating a compact EUV light source for nanoscale applications.https://www.mdpi.com/2304-6732/9/6/427high-harmonic generationextreme ultravioletnanostructure |
| spellingShingle | Seunghwoi Han High-Harmonic Generation Using a Single Dielectric Nanostructure Photonics high-harmonic generation extreme ultraviolet nanostructure |
| title | High-Harmonic Generation Using a Single Dielectric Nanostructure |
| title_full | High-Harmonic Generation Using a Single Dielectric Nanostructure |
| title_fullStr | High-Harmonic Generation Using a Single Dielectric Nanostructure |
| title_full_unstemmed | High-Harmonic Generation Using a Single Dielectric Nanostructure |
| title_short | High-Harmonic Generation Using a Single Dielectric Nanostructure |
| title_sort | high harmonic generation using a single dielectric nanostructure |
| topic | high-harmonic generation extreme ultraviolet nanostructure |
| url | https://www.mdpi.com/2304-6732/9/6/427 |
| work_keys_str_mv | AT seunghwoihan highharmonicgenerationusingasingledielectricnanostructure |